<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <!-- 
    model 可以让数据和视图，形成双向数据绑定
      1. 数据变化，视图自动更新
      2. 视图变化，数据自动更新

  -->

  <div id="app">
    账户：<input type="text" v-model="username"> <br><br>
    密码：<input type="password" v-model="password"> <br><br>
    <button @click="logo">登录</button>
    <button @click="reset">重置</button>
  </div>
  <script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script>

  <script>
    const app = new Vue({
      el: '#app',
      data: {
        username: '',
        password: ''
      },
      methods:{
        logo(){
          console.log(this.username,this.password);
          
        },
        reset(){
          this.username = '',
          this.password = ''
        }
      }
    })
  </script>
</body>

</html>